Sanforization

Sanforization is a process of treatment used for cotton fabrics mainly and most textiles made from natural or chemical fibres, patented by Sanford Lockwood Cluett (1874–1968) in 1930. It is a method of stretching, shrinking and fixing the woven cloth in both length and width, before cutting and producing to reduce the shrinkage which would otherwise occur after washing.

The cloth is continually fed into the sanforizing machine and therein moistened with either water or steam. A rotating cylinder presses a rubber band against another heated rotating cylinder, thereby the rubber band briefly gets compressed and afterwards shrinks to its final size. The cloth to be treated is transported between rubber band and heated cylinder and is forced to follow this brief expansion and recontraction and thus gets shrunk.

The bigger the pressure applied to the rubber band the bigger the shrinking afterwards.

The aim of the process is a cloth which does not shrink during clothes production by cutting, sewing or by wearing and washing the finished clothes.

For technical application, cloth may be specified to have a shrink-proof value of under 1%.

Art

Washing process in Apparel Manufacturing

Apparel manufacturing III
Washing
Prepared By
Md. Mahfuzur Rahman
Sr. Lecturer
Department of Textile engineering
Daffodil International University
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 Washing (Apparel manufacturing)

Garment / Apparel Patterns Instruction

Garment / Apparel Patterns Instruction:

Following instruction must be marked on apparel pattern, to enable the garment to be made up correctly: -
1. Style Number.
2. Name of the part
3. Size ( it will show you how to find your size on a pattern finished garment measurements)
4. Grain Line: All patterns must have grain lines. It indicates the length direction of fabrics, i.e. during marker making all patterns must be placed to the length direction.
5. Balance Mark: Used to ensure patterns are sewn together at the correct points.
6. Construction Lines: These include buttonholes, pocket placing etc.

Garment Patterns Construction:

1. Manual Method.
2. By Computer (CAD).

Principles of Pattern Making:

Principles of Pattern Making:

A garment sewing pattterns or garment fabric & patterns draft is developed by calculating, taking account of the following measurements: -
1. Direct Sample.
2. Specification Sheet/ Measurement Chart.
3. Actual body size measurements.
4. Easy Allowances.
5. Sewing Allowance.

Pattern Draft:

A pattern draft is a diagrammatic representation of the way a garment is constructed. The objective of pattern draft is to develop a sample garment.

Pattern Sets:

Different sizes of pattern for a particular style are called pattern sets, e.g. L.M.S.

Production Pattern:

The pattern se which are used for huge production is called production pattern.